Roadside retreats (4)
I believe the answer is:
inns
'roadside retreats' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for inns that I've seen before include "Country taverns" , "More than one pub" , "Roadhouses or courthouses" , "Old hostelries or pubs" , "Public houses" .)